Rigidbody.GetRelativePointVelocity

Description

相对于点 relativePoint 处的刚体的速度。

计算速度时，GetRelativePointVelocity 会考虑到刚体的 angularVelocity。

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Rigidbody rb;
    void Start() {
        rb = GetComponent<Rigidbody>();
    }
    Vector3 CalcWheelVelocity(Vector3 localWheelPos) {
        return rb.GetRelativePointVelocity(localWheelPos);
    }
}